Seasonal evolution of supraglacial lakes on an East Antarctic outlet glacier.
Supraglacial lakes are known to influence ice melt and ice flow on the Greenland ice sheet and potentially cause ice shelf disintegration on the Antarctic Peninsula. In East Antarctica, however, our understanding of their behavior and impact is more limited. Using >150 optical satellite images an...
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American Geophysical Union
2016
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Online Access: | http://dro.dur.ac.uk/19662/ http://dro.dur.ac.uk/19662/1/19662.pdf http://dro.dur.ac.uk/19662/2/19662P.pdf https://doi.org/10.1002/2016GL069511 |
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:19662 2023-05-15T14:02:14+02:00 Seasonal evolution of supraglacial lakes on an East Antarctic outlet glacier. Langley, E.S. Leeson, A.A. Stokes, C.R. Jamieson, S.S.R. 2016-08-28 application/pdf http://dro.dur.ac.uk/19662/ http://dro.dur.ac.uk/19662/1/19662.pdf http://dro.dur.ac.uk/19662/2/19662P.pdf https://doi.org/10.1002/2016GL069511 unknown American Geophysical Union dro:19662 issn:0094-8276 issn: 1944-8007 doi:10.1002/2016GL069511 http://dro.dur.ac.uk/19662/ http://dx.doi.org/10.1002/2016GL069511 http://dro.dur.ac.uk/19662/1/19662.pdf http://dro.dur.ac.uk/19662/2/19662P.pdf © 2016. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Geophysical research letters, 2016, Vol.43(16), pp.8563-8571 [Peer Reviewed Journal] Article PeerReviewed 2016 ftunivdurham https://doi.org/10.1002/2016GL069511 2020-05-28T22:35:41Z Supraglacial lakes are known to influence ice melt and ice flow on the Greenland ice sheet and potentially cause ice shelf disintegration on the Antarctic Peninsula. In East Antarctica, however, our understanding of their behavior and impact is more limited. Using >150 optical satellite images and meteorological records from 2000 to 2013, we provide the first multiyear analysis of lake evolution on Langhovde Glacier, Dronning Maud Land (69°11′S, 39°32′E). We mapped 7990 lakes and 855 surface channels up to 18.1 km inland (~670 m above sea level) from the grounding line and document three pathways of lake demise: (i) refreezing, (ii) drainage to the englacial/subglacial environment (on the floating ice), and (iii) overflow into surface channels (on both the floating and grounded ice). The parallels between these mechanisms, and those observed on Greenland and the Antarctic Peninsula, suggest that lakes may similarly affect rates and patterns of ice melt, ice flow, and ice shelf disintegration in East Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Dronning Maud Land East Antarctica glacier Greenland Ice Sheet Ice Shelf Durham University: Durham Research Online Antarctic Antarctic Peninsula Dronning Maud Land East Antarctica Greenland Langhovde ENVELOPE(39.733,39.733,-69.217,-69.217) Langhovde Glacier ENVELOPE(39.783,39.783,-69.200,-69.200) The Antarctic Geophysical Research Letters 43 16 8563 8571 |
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Open Polar |
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Durham University: Durham Research Online |
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ftunivdurham |
language |
unknown |
description |
Supraglacial lakes are known to influence ice melt and ice flow on the Greenland ice sheet and potentially cause ice shelf disintegration on the Antarctic Peninsula. In East Antarctica, however, our understanding of their behavior and impact is more limited. Using >150 optical satellite images and meteorological records from 2000 to 2013, we provide the first multiyear analysis of lake evolution on Langhovde Glacier, Dronning Maud Land (69°11′S, 39°32′E). We mapped 7990 lakes and 855 surface channels up to 18.1 km inland (~670 m above sea level) from the grounding line and document three pathways of lake demise: (i) refreezing, (ii) drainage to the englacial/subglacial environment (on the floating ice), and (iii) overflow into surface channels (on both the floating and grounded ice). The parallels between these mechanisms, and those observed on Greenland and the Antarctic Peninsula, suggest that lakes may similarly affect rates and patterns of ice melt, ice flow, and ice shelf disintegration in East Antarctica. |
format |
Article in Journal/Newspaper |
author |
Langley, E.S. Leeson, A.A. Stokes, C.R. Jamieson, S.S.R. |
spellingShingle |
Langley, E.S. Leeson, A.A. Stokes, C.R. Jamieson, S.S.R. Seasonal evolution of supraglacial lakes on an East Antarctic outlet glacier. |
author_facet |
Langley, E.S. Leeson, A.A. Stokes, C.R. Jamieson, S.S.R. |
author_sort |
Langley, E.S. |
title |
Seasonal evolution of supraglacial lakes on an East Antarctic outlet glacier. |
title_short |
Seasonal evolution of supraglacial lakes on an East Antarctic outlet glacier. |
title_full |
Seasonal evolution of supraglacial lakes on an East Antarctic outlet glacier. |
title_fullStr |
Seasonal evolution of supraglacial lakes on an East Antarctic outlet glacier. |
title_full_unstemmed |
Seasonal evolution of supraglacial lakes on an East Antarctic outlet glacier. |
title_sort |
seasonal evolution of supraglacial lakes on an east antarctic outlet glacier. |
publisher |
American Geophysical Union |
publishDate |
2016 |
url |
http://dro.dur.ac.uk/19662/ http://dro.dur.ac.uk/19662/1/19662.pdf http://dro.dur.ac.uk/19662/2/19662P.pdf https://doi.org/10.1002/2016GL069511 |
long_lat |
ENVELOPE(39.733,39.733,-69.217,-69.217) ENVELOPE(39.783,39.783,-69.200,-69.200) |
geographic |
Antarctic Antarctic Peninsula Dronning Maud Land East Antarctica Greenland Langhovde Langhovde Glacier The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Dronning Maud Land East Antarctica Greenland Langhovde Langhovde Glacier The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Dronning Maud Land East Antarctica glacier Greenland Ice Sheet Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Dronning Maud Land East Antarctica glacier Greenland Ice Sheet Ice Shelf |
op_source |
Geophysical research letters, 2016, Vol.43(16), pp.8563-8571 [Peer Reviewed Journal] |
op_relation |
dro:19662 issn:0094-8276 issn: 1944-8007 doi:10.1002/2016GL069511 http://dro.dur.ac.uk/19662/ http://dx.doi.org/10.1002/2016GL069511 http://dro.dur.ac.uk/19662/1/19662.pdf http://dro.dur.ac.uk/19662/2/19662P.pdf |
op_rights |
© 2016. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/2016GL069511 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
16 |
container_start_page |
8563 |
op_container_end_page |
8571 |
_version_ |
1766272397777829888 |